Which of the following is an example of a member expansion?

• A. E#Base.LE_110
• B. E#LE_110
• C. E#LE_110.Base
• D. E#LE_110.BaseX

Answer: (C)

In OneStream, member expansion uses the E# syntax to reveal a specific child under a chosen parent member. The form should place the parent member first, then a dot, then the child you want to expand. E#LE_110.Base does exactly that: it expands the parent LE_110 to show its child named Base, which is the action of expanding a member in the hierarchy. The other formats don’t fit because they either try to start from a different root (which isn’t the same parent context) or reference a child that doesn’t exist under that parent (BaseX). This is how you drill down in a dimension to see deeper levels or details.